/*=====================================================================

APM_PLANNER Open Source Ground Control Station

(c) 2013, Bill Bonney <billbonney@communistech.com>

This file is part of the APM_PLANNER project

    APM_PLANNER is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    APM_PLANNER is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with APM_PLANNER. If not, see <http://www.gnu.org/licenses/>.

======================================================================*/

/**
 * @file
 *   @brief Serial Settings View.
 *
 *   @author Bill Bonney <billbonney@communistech.com>
 *
 * Influenced from Qt examples by :-
 * Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
 * Copyright (C) 2012 Laszlo Papp <lpapp@kde.org>
 *
 */

#include "SerialSettingsDialog.h"
#include "terminalconsole.h"
#include "ui_SerialSettingsDialog.h"

#ifdef __android__
#include "qserialport.h"
#include "qserialportinfo.h"
#else
#include <QSerialPort>
#include <QSerialPortInfo>
#endif
#include <QIntValidator>
#include <QLineEdit>

QT_USE_NAMESPACE

SerialSettingsDialog::SerialSettingsDialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::SerialSettingsDialog)
{
    ui->setupUi(this);

    m_intValidator = new QIntValidator(0, 4000000, this);

    ui->baudRateBox->setInsertPolicy(QComboBox::NoInsert);

    connect(ui->applyButton, SIGNAL(clicked()),
            this, SLOT(apply()));
    connect(ui->serialPortInfoListBox, SIGNAL(currentIndexChanged(int)),
            this, SLOT(showPortInfo(int)));
    connect(ui->baudRateBox, SIGNAL(currentIndexChanged(int)),
            this, SLOT(checkCustomBaudRatePolicy(int)));

    fillPortsParameters();
    fillPortsInfo();

    updateSettings();
}

SerialSettingsDialog::~SerialSettingsDialog()
{
    delete ui;
}

const SerialSettings& SerialSettingsDialog::settings() const
{
    return m_currentSettings;
}

void SerialSettingsDialog::showPortInfo(int idx)
{
    if (idx != -1) {
        QStringList list = ui->serialPortInfoListBox->itemData(idx).toStringList();
        ui->descriptionLabel->setText(tr("Description: %1").arg(list.at(1)));
        ui->manufacturerLabel->setText(tr("Manufacturer: %1").arg(list.at(2)));
        ui->locationLabel->setText(tr("Location: %1").arg(list.at(3)));
        ui->vidLabel->setText(tr("Vendor Identifier: %1").arg(list.at(4)));
        ui->pidLabel->setText(tr("Product Identifier: %1").arg(list.at(5)));
    }
}

void SerialSettingsDialog::apply()
{
    updateSettings();
    hide();
}

void SerialSettingsDialog::checkCustomBaudRatePolicy(int idx)
{
    bool isCustomBaudRate = !ui->baudRateBox->itemData(idx).isValid();
    ui->baudRateBox->setEditable(isCustomBaudRate);
    if (isCustomBaudRate) {
        ui->baudRateBox->clearEditText();
        QLineEdit *edit = ui->baudRateBox->lineEdit();
        edit->setValidator(m_intValidator);
    }
}

void SerialSettingsDialog::fillPortsParameters()
{
    // fill baud rate (is not the entire list of available values,
    // desired values??, add your independently)
    ui->baudRateBox->addItem(QLatin1String("115200"), QSerialPort::Baud115200);
    ui->baudRateBox->addItem(QLatin1String("57600"), QSerialPort::Baud57600);
    ui->baudRateBox->addItem(QLatin1String("38400"), QSerialPort::Baud38400);
    ui->baudRateBox->addItem(QLatin1String("19200"), QSerialPort::Baud19200);
    ui->baudRateBox->addItem(QLatin1String("19200"), QSerialPort::Baud19200);
    ui->baudRateBox->addItem(QLatin1String("9600"), QSerialPort::Baud9600);
    ui->baudRateBox->addItem(QLatin1String("Custom"));

    // fill data bits
    ui->dataBitsBox->addItem(QLatin1String("5"), QSerialPort::Data5);
    ui->dataBitsBox->addItem(QLatin1String("6"), QSerialPort::Data6);
    ui->dataBitsBox->addItem(QLatin1String("7"), QSerialPort::Data7);
    ui->dataBitsBox->addItem(QLatin1String("8"), QSerialPort::Data8);
    ui->dataBitsBox->setCurrentIndex(3);

    // fill parity
    ui->parityBox->addItem(QLatin1String("None"), QSerialPort::NoParity);
    ui->parityBox->addItem(QLatin1String("Even"), QSerialPort::EvenParity);
    ui->parityBox->addItem(QLatin1String("Odd"), QSerialPort::OddParity);
    ui->parityBox->addItem(QLatin1String("Mark"), QSerialPort::MarkParity);
    ui->parityBox->addItem(QLatin1String("Space"), QSerialPort::SpaceParity);

    // fill stop bits
    ui->stopBitsBox->addItem(QLatin1String("1"), QSerialPort::OneStop);
#ifdef Q_OS_WIN
    ui->stopBitsBox->addItem(QLatin1String("1.5"), QSerialPort::OneAndHalfStop);
#endif
    ui->stopBitsBox->addItem(QLatin1String("2"), QSerialPort::TwoStop);

    // fill flow control
    ui->flowControlBox->addItem(QLatin1String("None"), QSerialPort::NoFlowControl);
    ui->flowControlBox->addItem(QLatin1String("RTS/CTS"), QSerialPort::HardwareControl);
    ui->flowControlBox->addItem(QLatin1String("XON/XOFF"), QSerialPort::SoftwareControl);
}

void SerialSettingsDialog::fillPortsInfo()
{
    ui->serialPortInfoListBox->clear();
    foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) {
        QStringList list;
        list << info.portName()
             << info.description()
             << info.manufacturer()
             << info.systemLocation()
             << (info.vendorIdentifier() ? QString::number(info.vendorIdentifier(), 16) : QString())
             << (info.productIdentifier() ? QString::number(info.productIdentifier(), 16) : QString());

        ui->serialPortInfoListBox->insertItem(0, list.first(), list);
    }
}

void SerialSettingsDialog::updateSettings()
{
    m_currentSettings.name = ui->serialPortInfoListBox->currentText();

    // Baud Rate
    if (ui->baudRateBox->currentIndex() == 4) {
        // custom baud rate
        m_currentSettings.baudRate = ui->baudRateBox->currentText().toInt();
    } else {
        // standard baud rate
        m_currentSettings.baudRate = static_cast<QSerialPort::BaudRate>(
                    ui->baudRateBox->itemData(ui->baudRateBox->currentIndex()).toInt());
    }
    // Data bits
    m_currentSettings.dataBits = static_cast<QSerialPort::DataBits>(
                ui->dataBitsBox->itemData(ui->dataBitsBox->currentIndex()).toInt());
    // Parity
    m_currentSettings.parity = static_cast<QSerialPort::Parity>(
                ui->parityBox->itemData(ui->parityBox->currentIndex()).toInt());
    // Stop bits
    m_currentSettings.stopBits = static_cast<QSerialPort::StopBits>(
                ui->stopBitsBox->itemData(ui->stopBitsBox->currentIndex()).toInt());
    // Flow control
    m_currentSettings.flowControl = static_cast<QSerialPort::FlowControl>(
                ui->flowControlBox->itemData(ui->flowControlBox->currentIndex()).toInt());
}